Sakuno Ryuzaki, the sole heir of the previously powerful Ryuzaki family is betrothed to Ryoma Echizen, the youngest son and prince of the most elite Echizen family. Having prepared for it her whole life, Sakuno didn't have any problems. But when Ryoma blatantly expresses defiance over the setup, it is now up to Sakuno to convince him otherwise. Throwing two other princes in the fray, more chaos arises. At the end of the day, who is the right prince to choose? RyoSaku AU.